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• When Monitored: • Set Condition: Possible Causes (K132) CABIN HEATER RELAY 1 CONTROL CIRCUIT SHORTED TO VOLTAGE CABIN HEATER RELAY 1 TOTALLY INTEGRATED POWER MODULE (TIPM) Diagnostic Test 1. VERIFY THAT THE DTC IS ACTIVE Turn the ignition on. With the scan tool, erase DTCs. With the scan tool, actuate the Cabin Heater 1 Relay. Monitor the scan tool for at least two minutes. With the scan tool, read DTCs. Does the scan tool display active: B10B5–CABIN HEATER 1 CONTROL CIRCUIT HIGH? Yes >> Go To 2 No >> The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, Perform the BODY VERIFICATION TEST VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 2. CHECK THE (K132) CABIN HEATER RELAY 1 CONTROL CIRCUIT FOR SHORT TO VOLTAGE Turn the ignition off. Disconnect the TIPM C1 harness connector. Remove the Cabin Heater Relay 1. Turn the ignition on. With a volt meter, measure the voltage on the (K132) Cabin Heater Does the volt meter read 1.0 volt or above? Yes >> Repair short to voltage on the (K132) Cabin Heater Relay 1 Control circuit. Perform the BODY VERIFICATION TEST VER 1. (Refer to No >> Go To 3 PM HEATING & AIR CONDITIONING ELECTRICAL DIAGNOSTICS 24 - 21 |